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Signal Fact 15

E A Cowper invented the railway detonator in 1841. Used to protect trains that had come to a stand unexpectedly.

First adopted by the Great Western Railway, the other companies soon followed suit.

Detonators are still used today.

This page should be regarded as “Work in Progress”. The webmaster will welcome additional information for this page.

Location Magazine
Paarl (South Africa) RSHS Bulletin 2003 36-3.
Paddock Wood SE040 Backtrack 2019 October.
Southern Way 2010 issue 12.
Railway Bylines 2010 October.
Steam Days 2010 May.
Railway Bylines 2009 September.
Railway Magazine 2008 April.
Steam World 1983 October.
Padgate (CLC) Backtrack 2009 September.
Padiham LY275 Steam Days 2016 October.
Padstow SW153 British Railways Illustrated 2013 December.
Steam Days 2013 December.
Southern Way 2013 issue 22.
Southern Way issue 18.
Steam Days 2011 December.
Railway Bylines 2009 October.
Railway Bylines 2009 May.
British Railways Illustrated 1998 October.
Paignton GW262 Steam Days 2013 January.
Steam World 2009 June.
Paisley Goods GP014 Steam Days 2016 March.
Palmers Green GN010 British Railways Illustrated 2011 January.
British Railways Illustrated 2010 January.
Pana (Illinois) RSHS Bulletin 2002 35-5.
Pant BM001
Panteg & Griffithstown Backtrack 2008 May.
Pantyffynon (GWR) Backtrack 2010 July.
Par GW350 British Railways Illustrated 2010 January.
British Railways Illustrated 2009 November.
Backtrack 2007 April.
Steam World 1993 July.
Par Harbour (GWR) Railway Archive 2008 March.
Parbold Backtrack 2008 September.
Park Avenue Crossing CM080 Steam Days 2011 July.
Park Junction GW510 Railway Magazine 2013 November.
Steam Days 2009 May.
Park Road (GNR) Modern Railways 2010 September.
Park Royal Goods GW040 Steam World 1983 July.
Park Street NW111 Steam World 1996 November.
Parkeston Quay (GER) British Railways Illustrated 2009 September.
Partick Central British Railways Illustrated 2008 October.
Partick West British Railways Illustrated 2008 October.
Partridge Green LB082 Railway Archive No.47 2015.
Backtrack 2012 December.
Pasture Street GC130 Railway Magazine 2015 December.
Patchway GW140 Railway Magazine 2007 October.
Patchway Tunnel GW140 Railway Bylines 2017 January
Railway Magazine 2007 October.
Patricroft NW620 Steam World 1982 June.
Patricroft Junction NW620 Backtrack 2020 November.
PattertonCA230 Railway Archive 2013 Issue 38.
Peak Forest MR440 Steam Days 2013 December.
British Railways Illustrated 2013 November.
LCGB Buletin 2012 January.
Railway Magazine 2010 November.
Railway Magazine 2010 March.
Railways Illustrated 2009 October.
Rail 2008 October 8.
Steam World 1995 December.
Peasmarsh Junction SW020 Southern Way 2010 issue 11.
Railway Bylines 2006 March.
Peckham Rye (LBSCR) Steam World 2011 January.
Pelaw NE610 British Railways Illustrated 2012 August.
Backtrack 1999 December.
Pelham Street Backtrack 2009 March.
Railway Magazine 2008 November.
Rail 2008 September 10.
Rail 2008 August 27.
Railway Magazine 2008 January.
Pembrey & Burry Port (GWR) Modern Railways 2009 April.
Penallta Junction GW440 Backtrack 2002 October.
Penarth Junction Main TV040 Railway Magazine 1898 July.
Pendleton Broad Street LY140 Backtrack 2020 November.
Penicuik NB069 Railway Bylines 2016 October.
Railway Bylines 2016 September.
Penistone GC360 Railway Magazine 2009 September.
Forward 2008 September.
Penistone Goods GC360 Steam World 1981 September.
Penmaenpool CM054 Steam World 2012 November.
British Railways Illustrated 2012 October.
Steam World 1994 August.
Pennington Junctions (LNWR)
Penrhyndeudraeth CM050 British Railways Illustrated 2013 February.
Penrith NW890 Steam Days 2019 December.
Backtrack 2016 October.
Steam Days 2012 January.
Backtrack 2011 April.
Backtrack 2010 February.
Railway Magazine 2008 March.
Steam World 2005 July.
Backtrack 1999 September.
Steam World 1994 January.
Penruddock CK001 Backtrack 2011 April.
Penryn Modern Railways 2009 July.
Backtrack 2008 May.
Pensford Railway Modeller 1971 December.
Penshaw NE370 Steam Days 2011 May.
Railway Magazine 1966 December.
Penshurst (SER) Backtrack 2010 January.
Penzance GW350 Rail issue 712.
Railway Magazine 2012 September.
British Railways Illustrated 2010 January.
British Railways Illustrated 2009 October.
Backtrack 2009 April.
Backtrack 2007 July.
Backtrack 2007 April.
Pequot (Illinois) RSHS Bulletin Volume 40 Issue 2.
Perranporth GW340 Steam Days 2013 April.
Perranwell Backtrack 2008 May.
Perry MD RSHS Bulletin volume 45-5.
Perry Barr (LNWR) Steam Days 2009 May.
Perth British Railways Illustrated 2009 August.
Peterborough GN040 British Railways Illustrated 2016 June.
Steam Days 2013 August.
Steam Days 2012 September.
Steam World 2009 October.
Steam World 2009 August.
Backtrack 2009 April.
Great Eastern Journal 2008 October.
British Railways Illustrated 2008 August.
Rail 2008 June 18.
Great Northern News 2007 November-December.
Railway Magazine 1926 December.
Peterborough East GE080 Great Eastern Journal 2009 April.
Steam World 1995 June.
Steam World 1995 May.
Railway Magazine 1926 December.
Peterhead Harbour GO014 Steam Days 2020 November.
Petersburg (VA) RSHS Bulletin 2009 volume 42-5.
Petersfield SW020 Southern Way issue 18.
Southern Way 2008 issue 4.
Petterill Bridge Junction MR930 British Railways Illustrated 2011 November.
Petts Wood SE001 Steam World 2002 November.
Petworth LB083 Backtrack 2011 July.
Southern Way 2007 issue 1.
Steam World 2000 January.
Pevensey & Westham LB120 Steam Days 2010 October.
Pevensey Sluice LB120 Backtrack 2013 October.
Pianotodo (Gotthard Line) Railway Magazine 1960 April.
Pickering NE221 Railway Bylines 2016 December.
Picketts Lock Great Eastern Journal 2008 October.
Picton NE490 Backtrack 2010 February.
Railway Bylines 2009 June.
Piddington MR081 Steam Days 2016 April.
Midland Railway Journal 2010 winter.
Steam World 2008 January.
Steam World 1998 December.
Pill GW157 Railway Magazine 1962 April.
Pilning High Level GW140 Backtrack 2016 August.
Backtrack 2016 July.
Pilning Low Level GW142 Steam Days 2010 January.
Pinfold Crossing NS010 Railway Archive Issue 37.
Pinwherry GS013 Backtrack 2013 November.
Pitlochry (HR) Modern Railways 2010 September.
Pitsea MR040 British Railways Illustrated 2013 August.
Pitsford & Brampton NW124 Steam Days 2016 April.
Steam World 1996 April.
Plaistow MR030 Backtrack 2017 January.
Platt Bridge Junnction NW571 Steam Days 2021 February.
Plawsworth NE420 British Railways Illustrated 1997 October.
Pleck Junction NW380 Railway Magazine 1966 February.
Pluckley (SECR) Backtrack 2019 October.
Steam Days 2009 September.
Plumpton Junction (FR)
Steam World 2009 September.
Backtrack 2008 January.
Plumtree MR100 Midland Railway Journal 2011 winter.
Steam World 1994 October.
Plymouth North Road GW270 Steam Days 2011 December.
Steam Days 2010 August.
Steam World 2010 January.
Steam World 2009 December.
British Railways Illustrated 2009 November.
Backtrack 2008 December.
Plympton GW270 Steam Days 2016 December.
Pocket Nook Junction NW680 British Railways Illustrated 2015 September.
Pockley Crossing Backtrack 2020 June.
Pokesdown (LSWR) Railway World 1970 October.
Steam Days 2011 February.
Steam World 2008 May.
Polegate LB120 Steam Days 2013 October.
Polhill (SER) Rail 2008 July 16.
Polmont NB132 British Railways Illustrated 2012 August.
Polygon Great Eastern Journal 2007 January.
Ponders End GE020 British Railways Illustrated 2011 August.
Pontardawe (MR) Steam World 2009 December.
Pontardulais NW300 Backtrack January 2021.
Pontardulais Junction Steam Days 2008 February.
Pontcynon TV010 Steam Days 2012 September.
Pontefract SK007 Railway Magazine 1960 April.
Ponteland NE683 Steam World 2002 June.
Pontop Crossing NE390 British Railways Illustrated 2010 December.
Railway Bylines 2010 November.
Steam World 2007 December.
Pontyberem Steam Days 2009 August.
Pontypool Road GW430 Railway Archive 2013 41.
Steam Days 2009 May.
Backtrack 2009 March.
Backtrack 2007 November.
Pontypridd TV001 Railway Observer 2011 May.
Backtrack 2010 August.
Poole SW100 Steam Days 2013 January.
British Railways Illustrated 2012 February.
Pooley Green (LSWR) Rail 2009 June 3.
Poplar Junction GE162 Great Eastern Journal 2011 January.
Poppleton NE201 Rail Express 2020 July.
Modern Railways 2015 November.
Port Carlisle Junction CA007 Steam Days 2011 October.
Port of London Authority Railway Bylines 2010 November.
Portadown GD040 Railway Magazine 2018 January.
Porth TV030 Steam World 1998 March.
Porthywaen CM005 Backtrack 2020 July.
Steam Days 2009 June.
Portishead GW157 Railway Modeller 1971 July.
Portobello (NBR) Backtrack 2010 September.
Portpatrick PW001 Railway Magazine 1927 January.
Porton SW120 Southern Way 2010 issue 10.
Portskewett GW470 Railway Archive 2013 41.
Steam Days 2012 January.
Backtrack 2007 September.
Portsmouth (Hampshire) Modern Railways 2006 December.
Postland JN020 Steam World 2008 October.
Potter Heigham MG010 M&GN Bulletin 2013 August.
Potters Bar GN030 British Railways Illustrated 2012 November.
Steam Days 2012 September.
British Railways Illustrated 2012 April.
British Railways Illustrated 2012 February.
British Railways Illustrated 2010 February.
British Railways Illustrated 2009 September.
Steam World 1996 April.
Poulton-le-Fylde Backtrack 2021 June.
LYR Focus 2008 Winter.
Rail 2008 March 12.
LYR Magazine 2006 Winter.
RSHS Bulletin 2001 34-5.
Prees NW225 Modern Railways 2013 August.
Preston NU001 Railway World 1970 January.
British Railways Illustrated 2011 April.
British Railways Illustrated 2010 August.
British Railways Illustrated 2010 April.
British Railways Illustrated 2010 March.
Steam World 2010 January.
British Railways Illustrated 2009 September.
Steam World 2009 September.
Backtrack 2009 August.
Steam World 2009 March.
Steam World 2008 March.
Steam World 2003 October.
Backtrack 2000 May.
Steam World 1995 February.
Steam World 1995 January.
Steam World 1991 January.
Preston NW860 Backtrack 2016 July.
Backtrack 2012 September.
Prestonpans NB001 Railway World 1970 September.
Primrose Hill (LNWR) also see Chalk Farm Steam Days 2010 April.
Prince of Wales GW610 Steam Days 2013 September.
Prince Tennant GW610 Steam Days 2013 September.
Princes Risborough GW050 Railway Magazine 2016 August.
Railway Magazine 2016 January.
Railway Magazine 2015 August.
Railway Magazine 2013 Christmas.
Modern Railways 2013 November.
Railway Magazine 2013 June.
Modern Railways 2012 January.
British Railways Illustrated 2011 November.
Modern Railways 2011 September.
Modern Railways 2011 June.
Modern Railways 2011 May.
Steam World 2002 April.
Railway Magazine 1933 September.
Princes Street Gardens NB130 British Railways Illustrated 2016 October.
Princetown GW276 The Countryman 2011 December.
Railway Modeller 1972 February.
Prudhoe NE430 Railway Magazine 2021 January.
Railway Magazine 2020 January.
Railway Observer 2010 September.
Railway Magazine 2008 November.
Pulbrough LB080 Southern Way issue 18.
Southern Way Preview.
Purley LB040 British Railways Illustrated 2007 February.
Steam World 2001 September.
Pyewipe Junction JN033 Steam Days 2013 August.
Steam Days 2013 March.
Backtrack 2009 October.
Steam Days 2009 June.
Pyewipe Road GC137 Railway Magazine 2016 January.
Pylle Hill GW150 Backtrack 2016 October.


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